<template>
    <div class="container">
        <el-card class="box-card">
            <el-button
                type="primary"
                size="default"
                icon="Plus"
                @click="addTrademark"
                v-has="`btn.Trademark.add`"
            >
                添加品牌
            </el-button>
            <el-table style="margin: 10px 0" border :data="trademarkArr">
                <el-table-column
                    label="序号"
                    width="80px"
                    align="center"
                    type="index"
                ></el-table-column>
                <el-table-column
                    label="品牌名称"
                    align="center"
                    prop="tmName"
                ></el-table-column>
                <el-table-column label="品牌logo" align="center">
                    <template #="{ row, $index }">
                        <img
                            :src="row.logoUrl"
                            style="width: 100px; height: 100px"
                        />
                    </template>
                </el-table-column>
                <el-table-column label="品牌操作" align="center">
                    <template #="{ row, $index }">
                        <el-button
                            type="primary"
                            size="small"
                            icon="Edit"
                            @click="updateTrademark(row)"
                        ></el-button>
                        <el-popconfirm
                            :title="`您确定要删除${row.tmName}?`"
                            width="250px"
                            icon="Delete"
                            @confirm="removeTradeMark(row.id)"
                        >
                            <template #reference>
                                <el-button
                                    type="primary"
                                    size="small"
                                    icon="Delete"
                                ></el-button>
                            </template>
                        </el-popconfirm>
                    </template>
                </el-table-column>
            </el-table>
            <el-pagination
                v-model:current-page="pageNo"
                v-model:page-size="limit"
                :page-sizes="[3, 5, 7, 9]"
                :background="true"
                layout="prev, pager, next, jumper,->,sizes,total"
                :total="total"
                @size-change="sizeChange"
                @current-change="getHasTrademark"
            />
        </el-card>
        <el-dialog
            v-model="dialogFormVisible"
            :title="trademarkParams.id ? '修改品牌' : '添加品牌'"
        >
            <el-form
                style="width: 80%"
                :model="trademarkParams"
                :rules="rules"
                ref="formRef"
            >
                <el-form-item
                    label="品牌名称"
                    label-width="100px"
                    prop="tmName"
                >
                    <el-input
                        placeholder="请您输入品牌名称"
                        v-model="trademarkParams.tmName"
                    ></el-input>
                </el-form-item>
                <el-form-item
                    label="品牌LOGO"
                    label-width="100px"
                    prop="logoUrl"
                >
                    <!-- upload组件属性:action图片上传路径书写/api,代理服务器不发送这次post请求  -->
                    <el-upload
                        class="avatar-uploader"
                        action="/api/admin/product/fileUpload"
                        :show-file-list="false"
                        :on-success="handleAvatarSuccess"
                        :before-upload="beforeAvatarUpload"
                    >
                        <img
                            v-if="trademarkParams.logoUrl"
                            :src="trademarkParams.logoUrl"
                            class="avatar"
                            alt=""
                        />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>
            </el-form>
            <!-- 具名插槽:footer -->
            <template #footer>
                <el-button type="primary" size="default" @click="cancel">
                    取消
                </el-button>
                <el-button type="primary" size="default" @click="confirm">
                    确定
                </el-button>
            </template>
        </el-dialog>
    </div>
</template>

<script setup lang="ts">
import { ElMessage, UploadProps, formEmits } from 'element-plus'
import { onMounted, ref, reactive, nextTick } from 'vue'
import {
    reqHasTrademark,
    reqAddOrUpdateTrademark,
    reqDeleteTrademark,
} from '@/api/product/trademark'
import type {
    Records,
    TradeMarkResponseData,
    TradeMark,
} from '@/api/product/trademark/type'

let pageNo = ref<number>(1)
let limit = ref<number>(4)
let total = ref<number>(0)
let trademarkArr = ref<Records>([])
let dialogFormVisible = ref<boolean>(false)
//定义收集新增品牌数据
let trademarkParams = reactive<TradeMark>({
    tmName: '',
    logoUrl: '',
})
//获取el-form组件实例
let formRef = ref()
const getHasTrademark = async (page = 1) => {
    let result: TradeMarkResponseData = await reqHasTrademark(
        pageNo.value,
        limit.value,
    )
    if (result.code == 200) {
        total.value = result.data.total
        trademarkArr.value = result.data.records
    }
}
const sizeChange = () => {
    getHasTrademark()
}
onMounted(() => {
    getHasTrademark()
})
//添加品牌按钮的回调
const addTrademark = () => {
    //对话框显示
    dialogFormVisible.value = true
    //清空收集数据
    trademarkParams.id = 0
    trademarkParams.tmName = ''
    trademarkParams.logoUrl = ''
    //第一种写法:ts的问号语法
    // formRef.value?.clearValidate('tmName');
    // formRef.value?.clearValidate('logoUrl');
    nextTick(() => {
        formRef.value.clearValidate('tmName')
        formRef.value.clearValidate('logoUrl')
    })
}
//修改已有品牌的按钮的回调
//row:row即为当前已有的品牌
const updateTrademark = (row: TradeMark) => {
    //清空校验规则错误提示信息
    nextTick(() => {
        formRef.value.clearValidate('tmName')
        formRef.value.clearValidate('logoUrl')
    })
    //对话框显示
    dialogFormVisible.value = true
    //ES6语法合并对象
    Object.assign(trademarkParams, row)
}
//对话框底部取消按钮
const cancel = () => {
    //对话框隐藏
    dialogFormVisible.value = false
}
const confirm = async () => {
    //在你发请求之前,要对于整个表单进行校验
    //调用这个方法进行全部表单相校验,如果校验全部通过，在执行后面的语法
    await formRef.value.validate()
    let result: any = await reqAddOrUpdateTrademark(trademarkParams)
    //添加|修改已有品牌
    if (result.code == 200) {
        //关闭对话框
        dialogFormVisible.value = false
        //弹出提示信息
        ElMessage({
            type: 'success',
            message: trademarkParams.id ? '修改品牌成功' : '添加品牌成功',
        })
        //再次发请求获取已有全部的品牌数据
        getHasTrademark(trademarkParams.id ? pageNo.value : 1)
    } else {
        //添加品牌失败
        ElMessage({
            type: 'error',
            message: trademarkParams.id ? '修改品牌失败' : '添加品牌失败',
        })
        //关闭对话框
        dialogFormVisible.value = false
    }
}
//上传图片组件->上传图片之前触发的钩子函数
const beforeAvatarUpload: UploadProps['beforeUpload'] = (rawFile) => {
    //钩子是在图片上传成功之前触发,上传文件之前可以约束文件类型与大小
    //要求:上传文件格式png|jpg|gif 4M
    if (
        rawFile.type == 'image/png' ||
        rawFile.type == 'image/jpeg' ||
        rawFile.type == 'image/gif'
    ) {
        if (rawFile.size / 1024 / 1024 < 4) {
            return true
        } else {
            ElMessage({
                type: 'error',
                message: '上传文件大小小于4M',
            })
            return false
        }
    } else {
        ElMessage({
            type: 'error',
            message: '上传文件格式务必PNG|JPG|GIF',
        })
        return false
    }
}
//图片上传成功钩子
const handleAvatarSuccess: UploadProps['onSuccess'] = (
    response,
    uploadFile,
) => {
    //response:即为当前这次上传图片post请求服务器返回的数据
    //收集上传图片的地址,添加一个新的品牌的时候带给服务器
    trademarkParams.logoUrl = response.data
    //图片上传成功,清除掉对应图片校验结果
    formRef.value.clearValidate('logoUrl')
}

//品牌自定义校验规则方法
const validatorTmName = (rule: any, value: any, callBack: any) => {
    //是当表单元素触发blur时候,会触发此方法
    //自定义校验规则
    if (value.trim().length >= 2) {
        callBack()
    } else {
        //校验未通过返回的错误的提示信息
        callBack(new Error('品牌名称位数大于等于两位'))
    }
}
//品牌LOGO图片的自定义校验规则方法
const validatorLogoUrl = (rule: any, value: any, callBack: any) => {
    //如果图片上传
    if (value) {
        callBack()
    } else {
        callBack(new Error('LOGO图片务必上传'))
    }
}

//表单校验规则对象
const rules = {
    tmName: [
        //required:这个字段务必校验,表单项前面出来五角星
        //trigger:代表触发校验规则时机[blur、change]
        { required: true, trigger: 'blur', validator: validatorTmName },
    ],
    logoUrl: [{ required: true, validator: validatorLogoUrl }],
}
//气泡确认框确定按钮的回调
const removeTradeMark = async (id: number) => {
    //点击确定按钮删除已有品牌请求
    let result = await reqDeleteTrademark(id)
    if (result.code == 200) {
        //删除成功提示信息
        ElMessage({
            type: 'success',
            message: '删除品牌成功',
        })
        //再次获取已有的品牌数据
        getHasTrademark(
            trademarkArr.value.length > 1 ? pageNo.value : pageNo.value - 1,
        )
    } else {
        ElMessage({
            type: 'error',
            message: '删除品牌失败',
        })
    }
}
</script>

<style lang="scss">
.avatar-uploader .el-upload {
    border: 1px dashed var(--el-border-color);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
    border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    text-align: center;
}
</style>
